基于博弈激励的分布式自适应异构无线网络拓扑控制

There exist many challenges for existing topology control theories and methods in wireless networks, which is posed by heterogenous wireless infrastructures and terminal units,freedom of selecting ISP Internet, diversity of network applications,indeterminism of users' behaviors.Therefore,we intend to introduce the game stimulation and adaptive mechanism to study the topology control problem under this environment.Our researches include the distributed adaptive topology control game framework,the new interference model and adaptive topology performance measuring method,the distributed adaptive topology control method with the optimization of multi-objective for heterogenous wireless networks.Through adopting potential game theory as guidance,introducing adaptive mechanism,and considering topology benefit,overhead,network environment and application scenarios,we will study the game framework;Through considering the interference sources from overlapping topologies and the interference probability of nodes,we will study the new interference model;Through introducing the adaptive mechanism based on network conditions and application parameters,we will study the delay measuring method and the balanced energy consumption measuring method which are used to measure topology performance.Through combining energy measurement with delay,interference,and the balanced energy consumption measurement,the adaptive multi-metrics method will be discussed.On the basis of the above,we will study the distributed adaptive topology control method with the optimization of multi-objective. Through the above researches,the interrelated framework,model and method will be obtained,which will improve the performance of ad hoc network consisted of wireless terminal units under heterogenous wireless access networks.The obtainable framework,model and method are the economical and effective ones which assist wireless infrastructures to realize the seamless access to Internet for users using wireless terminal units.

现有无线网络拓扑控制理论与方法面临着无线基础设施与终端异构、接入服务提供商选择的自主性、网络应用的多样性、用户行为的难以预测性等特征的巨大挑战。因此，本课题拟引入博弈激励与自适应机制来研究此环境下的拓扑控制问题。拟研究分布式自适应异构无线网络拓扑控制博弈框架、新的干扰建模及自适应拓扑性能度量方法、多优化目标约束下的分布式自适应拓扑控制方法。拟采取势博弈理论指导、引入自适应机制，并考虑拓扑效益、开销、网络环境和应用场景等研究博弈框架；拟考虑重叠拓扑干扰源和实际造成干扰的概率研究新干扰模型，并引入结合网络条件与应用参数的自适应机制构建延时、能耗均衡性等拓扑度量；拟组合多种拓扑性能度量构建自适应的多优化目标评价体系，据此研究相应的拓扑控制方法。拟获得的相关框架、模型、方法等将极大促进异构无线接入网下ad hoc网络性能的提升，为辅助基础设施实现无线终端无缝接入因特网与畅通互联提供经济有效的方法。

现有无线网络拓扑控制理论与方法面临着无线基础设施与终端异构、接入服务提供商选择的自主性、网络应用的多样性、用户行为的难以预测性等特征的巨大挑战。因此，本项目采用了博弈激励与自适应机制研究了此环境下的拓扑控制问题。主要研究内容包括分布式自适应异构无线网络拓扑控制博弈框架、新的干扰建模及自适应拓扑性能度量方法、多优化目标约束下的分布式自适应拓扑控制方法。通过对上述内容的深入研究，本项目基本达到了预期目标，获得了相应的博弈激励自适应框架、一组拓扑性能度量新方法，以及一组基于多目标优化的拓扑控制方案。特别是，获得了一组基于两目标优化的分布式局部拓扑控制方法（例如，基于干扰最小化和能效最优化、能耗均衡与延时双优化、以及网络容量最大化与能耗最小化等），以及具有灵活权衡能耗、延时与网络寿命的三目标拓扑控制方案。仿真实验结果表明本项目研究结果能够极大促进异构无线接入网下ad hoc网络性能的提升，为辅助基础设施实现无线终端无缝接入因特网与畅通互联提供了经济有效的方法。